Lead the technical vision and architectural roadmap for a fintech platform, driving scalable cloud-native designs, AI-assisted and agentic engineering, testability, and quality. Mentor teams, produce reference implementations and architecture docs, define integration/API standards, partner with Product and SDET on testing strategy, and ensure performance, security, and scalability of solutions.
Job Title: Software Architect
Location: Belfast, Northern Ireland
Work Arrangement: Hybrid In-Office
As a Software Architect you will define and own the technical vision and architectural roadmap for our engineering organisation as we transform how we build software through AI and agentic engineering. You will lead architectural decision-making, establish the patterns and standards our teams build on, and ensure our fintech platform is scalable, secure and built to last— while championing AI code generation, spec-driven development, and agentic workflows to enable exceptional team velocity without compromising quality.
You will work on shaping the technical direction of a fast-growing fintech, whilst partnering closely with Product Management, engineering leadership and our SDET teams to align technical solutions with business needs and to embed quality and testability as first-class architectural concerns. You’ll stay close to the code—producing reference implementations, proofs of concept and clear architecture documentation that bring your designs to life.
About Us: Recently ranked #482 on the Inc. 5000 fastest growing companies in the United States, Biller Genie is an award-winning B2B SaaS platform that is entering the Belfast market with ambitious plans to scale our team rapidly, with over 100 hires planned through 2028.
Technical Leadership
Our Core Values:
Get Shit Done Right - We work hard and ensure tasks are completed correctly and on time, every time.
Own it - We are subject matter experts who know what we know, and we are confident enough to speak up when we see something wrong.
Catch Up - We are high performers and love a fast-paced environment.
Believe in the Genie - We are passionate about where we are going as a team, and we show we care.
Class Shines - We are articulate professionals who carry ourselves well and speak with purpose.
Please note we are unable to offer visa sponsorship.
Location: Belfast, Northern Ireland
Work Arrangement: Hybrid In-Office
As a Software Architect you will define and own the technical vision and architectural roadmap for our engineering organisation as we transform how we build software through AI and agentic engineering. You will lead architectural decision-making, establish the patterns and standards our teams build on, and ensure our fintech platform is scalable, secure and built to last— while championing AI code generation, spec-driven development, and agentic workflows to enable exceptional team velocity without compromising quality.
You will work on shaping the technical direction of a fast-growing fintech, whilst partnering closely with Product Management, engineering leadership and our SDET teams to align technical solutions with business needs and to embed quality and testability as first-class architectural concerns. You’ll stay close to the code—producing reference implementations, proofs of concept and clear architecture documentation that bring your designs to life.
About Us: Recently ranked #482 on the Inc. 5000 fastest growing companies in the United States, Biller Genie is an award-winning B2B SaaS platform that is entering the Belfast market with ambitious plans to scale our team rapidly, with over 100 hires planned through 2028.
Technical Leadership
- Define and own the technical vision and architectural roadmap, leading decision-making, documenting key designs, and approving major solutions
- Provide technical mentorship to development and SDET teams
- Review and approve major technical designs and solutions
- Design scalable, maintainable, and extensible fintech architectures while defining integration patterns and API standards
- Establish best practices and maintain clear architecture documentation, including diagrams and specifications
- Partner with SDET teams to define testing strategies, frameworks, automation, and quality metrics
- Architect for testability, ensuring clear coverage requirements and high-quality outcomes
- Drive modern practices, tooling, and AI-assisted engineering
- Ensure architectures meet performance, security, and scalability needs while managing technical debt and tracking industry trends
- Define and lead the roadmap for AI-assisted and agentic engineering
- Enable safe, scalable adoption of AI code generation and spec-driven development, evaluating tools and mentoring teams on effective use
- Align technical solutions with business goals alongside Product Management
- Lead architecture discussions, communicate with diverse stakeholders, and partner on strategic initiatives
- Champion TDD/BDD and continuous integration/testing practices
- Define performance, security, and load testing strategies, with clear quality gates and release criteria
- BSc/MSc in Computer Science (or equivalent commercial experience) with 9+ years in software engineering, including as a Software Architect or senior technical design lead
- Deep expertise in .NET/C# and modern web technologies, with strong knowledge of architectural/design patterns, DDD, and API/integration design
- Proven experience designing scalable, distributed, cloud-native systems (Azure preferred; AWS/GCP considered) meeting performance, security, scalability, and resilience requirements
- Hands-on experience with AI code generation and agentic workflows, including spec-driven development for high-velocity, high-quality delivery
- Strong focus on testability, collaborating with QA/SDET on strategy, and producing clear architecture documentation and design records
- Comfortable staying hands-on through proofs of concept, reference implementations, and design spikes
- Strong leadership, mentoring, and communication skills, able to engage technical and non-technical stakeholders and grow engineering teams
- Legal right to work in the UK
- Cloud certification (e.g., Azure Solutions Architect Expert)
- Fintech/financial services experience (ideally payments or AR automation)
- Experience with event-driven architecture and messaging (e.g., Azure Service Bus, CloudEvents)
- Strong advocacy of TDD/BDD and continuous testing practices
- Knowledge of CI/CD pipelines and DevOps practices
- Experience with LEAN software development
- Experience defining governance, guardrails, and evaluation frameworks for AI-assisted engineering at scale
- Awareness of security and compliance frameworks (e.g., PCI DSS)
- Hands-on experience with front-end frameworks (e.g., React)
- Familiarity with modern .NET tooling (e.g., .NET 9, Aspire) and data platforms (e.g., lakehouse, ClickHouse)
- Private health insurance
- Group life death benefit
- Auto-enrollment pension with employer contributions increased to 5%
- 25 days holiday per year
- 10 statutory/bank holidays per year
- Opportunities for professional growth and development
- A collaborative and innovative work environment
Our Core Values:
Get Shit Done Right - We work hard and ensure tasks are completed correctly and on time, every time.
Own it - We are subject matter experts who know what we know, and we are confident enough to speak up when we see something wrong.
Catch Up - We are high performers and love a fast-paced environment.
Believe in the Genie - We are passionate about where we are going as a team, and we show we care.
Class Shines - We are articulate professionals who carry ourselves well and speak with purpose.
Please note we are unable to offer visa sponsorship.
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What you need to know about the Belfast Tech Scene
If asked to name the birthplace of the RMS Titanic, you might not say Belfast. Similarly, if asked to name Europe's leading destination for foreign direct investment in new software development, Belfast might not come to mind. Yet, both are true. The city has emerged as a tech powerhouse, recently ranked among the best in the U.K. for tech careers — especially for software developers. It also leads the U.K. with the highest percentage of software development jobs advertised.
